Palynostratigraphy of the lower and middle Pennsylvanian coals of Iowa
By: Robert L. Ravn.
Series: Iowa Geological Survey technical paper ;; no. 7
Publisher: Iowa Geological Survey
Published: 1986
Place of publication: Iowa City, Iowa (123 N. Capitol St., Iowa City 52242)
Language: eng
Number of pages: 245
Subjects: Palynology -- Iowa.; Paleobotany -- Pennsylvanian.; Coal -- Geology -- Iowa.
Notes: Bibliography: p. 147-164.